PHYSIO 1 - Skeletal Muscle System (5Q)

Which is the largest in size?

• sarcomere

• muscle fibre

• actin

In ______ contraction, an isolated muscle fibre lengthens to produce muscular force.

• isometric
• concentric
• eccentric

A motor unit comprises a single nerve cell and all the ______ that it innervates.

• muscle fibres
• myosin
• sarcomeres

In the Length-Tension Angle relationship, the more overlap there is between the actin and myosin, the higher the ______ generated.

• contraction
• force
• speed

In the Stretch-Shortening Cycle mechanism, it is critical to have ______. Select all that apply.

• an initial counter-movement
• a concentric action first
• short coupling time